Abstract: A method and apparatus for providing variable analog to digital converter (ADC) resolution is described.

Abstract: In general, the subject matter described in this disclosure can be embodied in an electronic instrument for signal acquisition. The instrument includes a user-selectable button to activate a switch and change a first digitizer from connecting to a first input to connecting to a second input, resulting in an input signal being provided to both the first digitizer and a second digitizer. The instrument includes a combiner to combine an output of the first digitizer and an output of the second digitizer, when the input signal is provided to both the first digitizer and the second digitizer, to generate an output signal that has been digitized using the first digitizer and the second digitizer, the output signal having a bandwidth that exceeds the first bandwidth of the first digitizer and that exceeds the second bandwidth of the second digitizer.

Abstract: A method and apparatus for providing variable analog to digital converter (ADC) resolution is described.

Abstract: A method and apparatus for providing variable analog to digital converter (ADC) resolution is described.

Abstract: In general, the subject matter described in this disclosure can be embodied in an electronic instrument for signal acquisition. The instrument includes a user-selectable button to activate a switch and change a first digitizer from connecting to a first input to connecting to a second input, resulting in an input signal being provided to both the first digitizer and a second digitizer. The instrument includes a combiner to combine an output of the first digitizer and an output of the second digitizer, when the input signal is provided to both the first digitizer and the second digitizer, to generate an output signal that has been digitized using the first digitizer and the second digitizer, the output signal having a bandwidth that exceeds the first bandwidth of the first digitizer and that exceeds the second bandwidth of the second digitizer.

Abstract: An oscilloscope comprises a first channel that includes a first channel physical input adapted to receive a first input signal, and a first channel digitizer connectable to the first channel physical input. The oscilloscope comprises a second channel that includes a second channel physical input adapted to receive a second input signal, and a second channel digitizer connected to the second channel physical input. The oscilloscope comprises a switch to change the first channel digitizer from connecting to the first channel physical input, to connecting to the second channel physical input. The oscilloscope includes a combiner to combine an output of the first channel digitizer and an output of the second channel digitizer, when a high bandwidth mode is activated, to generate an output that has a bandwidth of frequency content that exceeds a bandwidth of the first digitizer and exceeds a bandwidth of the second channel digitizer.

Abstract: An oscilloscope comprises a first channel that includes a first channel physical input adapted to receive a first input signal, and a first channel digitizer connectable to the first channel physical input. The oscilloscope comprises a second channel that includes a second channel physical input adapted to receive a second input signal, and a second channel digitizer connected to the second channel physical input. The oscilloscope comprises a switch to change the first channel digitizer from connecting to the first channel physical input, to connecting to the second channel physical input. The oscilloscope includes a combiner to combine an output of the first channel digitizer and an output of the second channel digitizer, when a high bandwidth mode is activated, to generate an output that has a bandwidth of frequency content that exceeds a bandwidth of the first digitizer and exceeds a bandwidth of the second channel digitizer.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method and apparatus for providing variable analog to digital converter (ADC) resolution is described.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A graphical user interface for use with a signal integrity network analyzer is provided. The user interface may include a selection for selectively enforcing one or more of passivity, reciprocity and causality in one or more measurements by the signal integrity network analyzer. The user interface may include a recalculate selection, wherein after analysis of a calculated waveform, one or more system parameters may be modified, and the previously acquired waveform is again analyzed without acquisition of any additional waveform data in accordance with the one or more modified system parameters. The user interface may include a selection for configuring a number of ports for a device under test to be employed by the signal integrity network analyzer. The user interface may include a selection for autoparking one or more relays associated with the signal integrity network analyzer.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

Abstract: A method and apparatus for digitizing a data signal, the method comprising the steps of receiving an input analog data signal, splitting the received input analog data signal into a plurality of split signals, and mixing at least one of the split signals with a predetermined periodic function with a predetermined frequency. The split signals are then digitized and combined mathematically to form a single output data stream that is a substantially correct representation of the original input signal.

Abstract: A method and apparatus for digitizing a signal. The method comprises the steps of receiving an input analog signal, splitting the received input analog signal into a plurality of signals and frequency converting at least one of the signals in accordance with a predetermined periodic function having a predetermined frequency. The signals are then digitized and combined mathematically to form a single output stream that is a substantially correct representation of the original input analog signal.